Well, it's not impossible, but the fact that our trucks ride only an inch or two off the upper suspension bumper in the front would make it very hard to do much without gutting the front end and completely redesigning and fabricating a new front suspension. 2WDs adapt to this sort of thing much easier since they do not require a long piece of metal across the entire front end to move up and down and everything is moving outboard of the frame.
Totally the wrong type of vehicle. If you wanna run a truck of any kind, you should consider a 2wd. If you're really dead set on using your RC, think about converting to 2wd. Maybe swapping in a Crown Vic front end or Dakota front end and getting rid of the heavy axle and t-case weight.
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